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s.ouchene
Asked: 2020-09-25 00:38:41 +0800 CST

Ubuntu 20.04 how to remove duplicate packages after upgrade

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I noticed that in My Ubuntu 20.04, I have some duplicate packages (from Ubuntu 18.04): Calculator, System monitor, etc. For instance, when I search for System monitor, here is the result:

enter image description here

In addition, the old packages appear with garbled-characters, when I open the old version it appears as follows:

enter image description here

However, the versions from Ubuntu 20.04 show up properly without that issue.

How can I get rid of those duplicated packages?

system-monitor 18.04 character-set gnome-calculator 20.04

1 Answers

  1. Best Answer

    Those packages are duplicated because in Ubuntu 18.04 they were installed as snap packages, but in Ubuntu 20.04 they are installed as deb packages.

    Just open the terminal and run the following commands to remove all duplicated packages:

    sudo snap remove --purge gnome-calculator
sudo snap remove --purge gnome-characters
sudo snap remove --purge gnome-logs
sudo snap remove --purge gnome-system-monitor
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